Why don't you want to reveal the name of your teacher? Are you ashamed of him or embarrassed to train at his dojo?
He probably doesn't want random, annonymous people on the internet to view his instructor as overly cruel or neglectful of proper training methods. Anything can be skewed on the web and taken out of context rather easily. I assume KydeX is trying to avoid dragging his teacher through the mud without cause, but that is just my guess. If he doesn't want to reveal him, I don't think we should pressure him for a name.
It should go without saying that your teacher never actually "trained with" Hatsumi sensei. Many people have made this claim, to be sure. What they really mean is that they were in the same room as Hatsumi sensei and observed his movement. But they did not in fact interact with him they way they would with another training partner.
"Trained with" could also be taken as "trained under", in which case could include direct supervision from Hatsumi himself. It would depend when he started training. He could have just been another face in the crowd at the Hombu, or his actual training partners could include people like Tanemura, Manaka, Shirashi, and Nagato for all we know.
It should also go without saying that your teacher may indeed be the highest ranking instructor in your country, wherever that is. But it's a moot point considering that rank in the Bujinkan organization is meaningless.
Yeah rank in the Bujinkan can be arbitrary, but just cause some 10th dans are bad, doesn't mean KydeX's instructor isn't good at what he does. It's possible he could have some ranking in the actual ryuha as well.
Your instructor's qualifications have everything to do with whether or not you are being injured during practice. If your instructor is pefforming the technique correctly and moving properly, the potential for injury during practice would be minimal at best.
Yes and no, I think. Yes, an instructor should be skilled enough to know whether is student can or can't properly recieve a technique without serious risk of injury, but it is not that uncommon to find instructors who are used to harder applications of techniques. It could be that his instructor is being too rough, possibly negligent, or it could be that KydeX is just far less flexible than the other students. We don't know; and I don't think we are in a clear enough position to question the legitimacy or quality of his instructor's skill or teaching ability.
Why do you think your instructor teaches effective self-defense? The koryu disseminated within the Bujinkan organization have absolutely nothing to do with self-defense.
Well, I would argue that some of the kata found in togakure ryu are very much about self-defense, but that is beside the point. The Bujinkan does not necessarily teach the koryu as the way the were originally presented. The Bujinkan emphasises its training through Bujinkan Budo Taijutsu. Many, many principles and skills can very easily be trained from a self-defense perspective. So while many of the arts in the Bujinkan many not have been originally intended for self-defense, I would completely disagree with the assertation that they "have absolutely nothing to do with self-defense"